Vendor:Speedzone Performance LLC
SPDZ1 Long Tube Headers — VQ35DE/HR | Nissan 350Z Z33 / 370Z / Infiniti G35 G37
SPDZ1 High Ground Clearance Long Tube Headers
Nissan 350Z • 370Z • Infiniti G35 • G37 • Q50 • VQ35DE / VQ35HR / VQ37VHR
Unlock the true potential of your VQ-powered Nissan or Infiniti with the SPDZ1 HGC (High Ground Clearance) Long Tube Headers. Engineered for enthusiasts who demand maximum performance without sacrificing drivability, these headers deliver noticeable horsepower gains, stronger mid-range torque, and an aggressive exhaust note that every VQ owner loves.
Unlike conventional long tube headers, the innovative High Ground Clearance (HGC) collector design tucks the collectors higher into the chassis, dramatically improving ground clearance while maintaining excellent exhaust flow. The stepped primary design helps preserve low and mid-range torque while still supporting impressive top-end power gains.
Manufactured from premium 304 brushed stainless steel with heavy-duty CNC-machined flanges, these headers are built to withstand years of abuse on both street and track.
Features
✔ Premium 304 Brushed Stainless Steel Construction
✔ High Ground Clearance (HGC) Collector Design
✔ Stepped Primary Tubing for Improved Torque & Horsepower
✔ Heavy-Duty CNC Machined Flanges
✔ Precision TIG Welded Construction
✔ Direct Bolt-On to OEM Mid/Y-Pipe
✔ Factory O2 Sensor Locations Supported
✔ Fits Both RWD & Many AWD Applications
✔ Excellent Exhaust Tone with Increased Flow
Performance Benefits
- Increased horsepower throughout the RPM range
- Improved throttle response
- Stronger low and mid-range torque
- Better exhaust scavenging
- Aggressive race-inspired exhaust sound
- Reduced exhaust restriction compared to factory manifolds
Specifications
- Primary Tubing Diameter: 1.80" OD
- Collector Diameter: 2.50" OD
- 3/8" Thick Exhaust Flanges
- 304 Stainless Steel Construction
- Brushed Finish
- Includes Installation Gaskets
What's Included
- (2) Stainless Steel Long Tube Headers
- (4) Exhaust Collector Gaskets
- (4) Cylinder Head Gaskets
Fitment
Nissan
- 2003-2009 350Z
- 2009-2020 370Z
Infiniti
- G35
- G37
- G25
- Q40
- Q50 (3.7L)
- Q60 (3.7L)
- FX35
- M35 / M35h
Compatible with:
- VQ35DE
- VQ35HR
- VQ37VHR
Also compatible with many AWD (X) models.
Installation Notes
- The upstream O2 sensor wiring may require extension due to the relocated sensor position, we offer two types based on the year of your vehicle, look at the 2 options here:
- 02-04 350z and 03-05 G35 that have the heated O2 sensors with Blue and Green Connectors
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O2 Extension Harness 2011+ 370Z - G27 & 2014-2015 Q50 - Q60 all Q40 12"
- Professional installation is highly recommended.
- ECU tuning is recommended to maximize performance and prevent check engine lights after installation.
Race Use Disclaimer
These long tube headers are intended for off-road and competition use only. They eliminate the factory catalytic converters and are not legal for use on public roads in emissions-controlled areas. Please verify your local emissions regulations before purchasing.
Ships within 1-2 business days.
100% Genuine Parts
Fitment Guaranteed
SPDZ1 Long Tube Headers — VQ35DE/HR | Nissan 350Z Z33 / 370Z / Infiniti G35 G37
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FAQs
Please read our FAQs page to find out more.
Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like Turbo Tech Performance. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.